Hello All,
First. Please note that there are 2 different generations of the motor, I
will speak to both.

For the older model of CP79975-00 you are looking for the brush part number
CP07997-55. The older model used a nickel plated phosphor bronze brush.
We have a limited number of these left, the price is $11.00.

The current version has a differently designed commutator and brushes. The
brush part number for the current version is 1450-5.

The way to distinguish which version you have is that the old version uses
a brass commutator and the current version uses a copper commutator. A
tech drawing of the old version brush is attached if anyone is interested.

(See attached file: Brush.pdf)

If anyone is interested in ordering either style brush please contact Bart
McGloin at 1-800-727-4368, he can place the special order for you.

This is not a standard motor; it is an older version of the CENCO
CP79975-00 Demo Motor + Generator apparatus. In other words, it has a
completely open U-frame attached to a base, with only two stator coils and
two rotor coils. It is similar to a St. Louis motor but larger and uses
electromagnets instead of permanent magnets to provide the stator field.
The brushes are strips of metal that are spring-loaded against the
commutator at the top of the rotor assembly.

--
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For in the end, we will conserve only what we love.
We will love only what we understand.
We will understand only what we are taught. - Baba Dioum
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Machele Kindle
Graduate Student
Ira A. Fulton School of Engineering
Arizona State University
(336) 408-8382
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